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https://issues.apache.org/jira/browse/OOZIE-3113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16308870#comment-16308870
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Satish Subhashrao Saley commented on OOZIE-3113:
------------------------------------------------
Committed to master.
Thank you Rohini and Andras for review.
> Retry for ZK lock release
> -------------------------
>
> Key: OOZIE-3113
> URL: https://issues.apache.org/jira/browse/OOZIE-3113
> Project: Oozie
> Issue Type: Bug
> Reporter: Satish Subhashrao Saley
> Assignee: Satish Subhashrao Saley
> Attachments: OOZIE-3113-1.patch, OOZIE-3113-2.patch,
> OOZIE-3113-3.patch, OOZIE-3113-4.patch
>
>
> ZK Lock might not get released if release call fails. Oozie should do
> exponential retry for some time before giving up.
> {code}
> 2017-10-25 03:07:45,787 WARN ZKLocksService:523 [pool-12-thread-74] -
> SERVER[localhost] USER[-] GROUP[-] TOKEN[-] APP[-]
> JOB[123-123--oozie_saley-C] ACTION[123-123--oozie_saley-C@67] Could not
> release lock: KeeperErrorCode = ConnectionLoss for
> /oozie/localhost-oozie/locks/123-123--oozie_saley-C/1234__WRIT__0000000111
> org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode
> = ConnectionLoss for
> /oozie/localhost-oozie/locks/123-123--oozie_saley-C/1234__WRIT__0000000111
> at
> org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
> at
> org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
> at org.apache.zookeeper.ZooKeeper.delete(ZooKeeper.java:873)
> at
> org.apache.curator.framework.imps.DeleteBuilderImpl$5.call(DeleteBuilderImpl.java:239)
> at
> org.apache.curator.framework.imps.DeleteBuilderImpl$5.call(DeleteBuilderImpl.java:234)
> at org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:107)
> at
> org.apache.curator.framework.imps.DeleteBuilderImpl.pathInForeground(DeleteBuilderImpl.java:230)
> at
> org.apache.curator.framework.imps.DeleteBuilderImpl.forPath(DeleteBuilderImpl.java:215)
> at
> org.apache.curator.framework.imps.DeleteBuilderImpl.forPath(DeleteBuilderImpl.java:42)
> at
> org.apache.curator.framework.recipes.locks.LockInternals.deleteOurPath(LockInternals.java:345)
> at
> org.apache.curator.framework.recipes.locks.LockInternals.releaseLock(LockInternals.java:123)
> at
> org.apache.curator.framework.recipes.locks.InterProcessMutex.release(InterProcessMutex.java:142)
> at
> org.apache.oozie.service.ZKLocksService$ZKLockToken.release(ZKLocksService.java:206)
> at org.apache.oozie.command.XCommand.releaseLock(XCommand.java:233)
> at org.apache.oozie.command.XCommand.call(XCommand.java:305)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> org.apache.oozie.service.CallableQueueService$CallableWrapper.run(CallableQueueService.java:178)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> {code}
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